The front of the Galaxy S4 features a metallic trim, while the back is just plastic.

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From left, the Galaxy S3, the HTC One, the Galaxy S4, and the iPhone.

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New eye tracking software called Samsung Smart Pause automatically pauses your video when you look away from your phone, while the Samsung Scroll will scroll the page for you when you get to the end.

(Image: Sarah Tew/CNET)

(Image: Sarah Tew/CNET)

The S Voice connects users to a car by Bluetooth and lets drivers make calls, send messages, and check the weather with voice commands.

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The camera on the back features 13 megapixels, while the one in front can take 2 megapixel shots.

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Its dual camera lets you capture up to 9 seconds of audio while taking a picture. The Drama shot lets you combine all actions in the burst mode into one photo.

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Adapt Display automatically adjusts contrast and other factors depending on the light.

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Unlike Apple devices, the Galaxy S4 has a removable battery that boasts a larger capacity than the Galaxy S3, too: 2,600mAh compared with a 2,100mAh battery.

(Image: Sarah Tew/CNET)

(Image: Sarah Tew/CNET)

The Galaxy S4 can connect to Samsung's Home Sync device. It allows content on your television to be played on the S4 with up to eight users. It has 1TB cloud storage, and lets you transfer files and photos to your TV.

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Group Play lets you transfer and view or play documents, music files, photos, and other content to other Galaxy S4 handsets. It even supports multi-player games.

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Samsung has its own version of Apple's FaceTime.

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Screen resolution stats.

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The Samsung Hub is an integrated multimedia content store that offers music, videos, books, games, and learning content within a magazine-style display.